--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#include "gtest/gtest.h"
+
+#include "mds/mdstypes.h"
+#include "include/buffer.h"
+#include "include/rbd_types.h"
+#include "include/rados/librados.h"
+#include "include/rados/librados.hpp"
+#include "include/stringify.h"
+#include "include/types.h"
+#include "global/global_context.h"
+#include "common/Cond.h"
+#include "test/librados/test.h"
+#include "test/librados/TestCase.h"
+#include "json_spirit/json_spirit.h"
+
+#include "osd/HitSet.h"
+
+#include <errno.h>
+#include <map>
+#include <sstream>
+#include <string>
+
+using namespace librados;
+using std::map;
+using std::ostringstream;
+using std::string;
+
+typedef RadosTestPP LibRadosTierPP;
+typedef RadosTestECPP LibRadosTierECPP;
+
+void flush_evict_all(librados::Rados& cluster, librados::IoCtx& cache_ioctx)
+{
+ bufferlist inbl;
+ cache_ioctx.set_namespace(all_nspaces);
+ for (NObjectIterator it = cache_ioctx.nobjects_begin();
+ it != cache_ioctx.nobjects_end(); ++it) {
+ cache_ioctx.locator_set_key(it->get_locator());
+ cache_ioctx.set_namespace(it->get_nspace());
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ cache_ioctx.aio_operate(
+ it->get_oid(), completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL);
+ completion->wait_for_safe();
+ completion->get_return_value();
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ cache_ioctx.aio_operate(
+ it->get_oid(), completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL);
+ completion->wait_for_safe();
+ completion->get_return_value();
+ completion->release();
+ }
+ }
+}
+
+class LibRadosTwoPoolsPP : public RadosTestPP
+{
+public:
+ LibRadosTwoPoolsPP() {};
+ ~LibRadosTwoPoolsPP() override {};
+protected:
+ static void SetUpTestCase() {
+ pool_name = get_temp_pool_name();
+ ASSERT_EQ("", create_one_pool_pp(pool_name, s_cluster));
+ }
+ static void TearDownTestCase() {
+ ASSERT_EQ(0, destroy_one_pool_pp(pool_name, s_cluster));
+ }
+ static std::string cache_pool_name;
+
+ void SetUp() override {
+ cache_pool_name = get_temp_pool_name();
+ ASSERT_EQ(0, s_cluster.pool_create(cache_pool_name.c_str()));
+ RadosTestPP::SetUp();
+
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ cache_ioctx.application_enable("rados", true);
+ cache_ioctx.set_namespace(nspace);
+ }
+ void TearDown() override {
+ // flush + evict cache
+ flush_evict_all(cluster, cache_ioctx);
+
+ bufferlist inbl;
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+
+ RadosTestPP::TearDown();
+
+ cleanup_default_namespace(cache_ioctx);
+ cleanup_namespace(cache_ioctx, nspace);
+
+ cache_ioctx.close();
+ ASSERT_EQ(0, s_cluster.pool_delete(cache_pool_name.c_str()));
+ }
+ librados::IoCtx cache_ioctx;
+};
+
+class Completions
+{
+public:
+ Completions() = default;
+ librados::AioCompletion* getCompletion() {
+ librados::AioCompletion* comp = librados::Rados::aio_create_completion();
+ m_completions.push_back(comp);
+ return comp;
+ }
+
+ ~Completions() {
+ for (auto& comp : m_completions) {
+ comp->release();
+ }
+ }
+
+private:
+ vector<librados::AioCompletion *> m_completions;
+};
+
+Completions completions;
+
+std::string LibRadosTwoPoolsPP::cache_pool_name;
+
+TEST_F(LibRadosTierPP, Dirty) {
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op)); // still get 0 if it dne
+ }
+ {
+ ObjectWriteOperation op;
+ op.create(true);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ }
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op)); // still 0 if already clean
+ }
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+ {
+ ObjectWriteOperation op;
+ op.truncate(0); // still a write even tho it is a no-op
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, Overlay) {
+ // create objects
+ {
+ bufferlist bl;
+ bl.append("base");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("cache");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // by default, the overlay sends us to cache pool
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, cache_ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // unless we say otherwise
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(0, 1, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ ASSERT_EQ('b', bl[0]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, Promote) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // read, trigger a whiteout
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, PromoteSnap) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on the head
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ ioctx.snap_set_read(my_snaps[0]);
+
+ // read foo snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // read bar snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // read baz snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+
+ // read foo
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // read bar
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // read baz
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("baz", bl, 1, 0));
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTwoPoolsPP, PromoteSnapScrub) {
+ int num = 100;
+
+ // create objects
+ for (int i=0; i<num; ++i) {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate(string("foo") + stringify(i), &op));
+ }
+
+ vector<uint64_t> my_snaps;
+ for (int snap=0; snap<4; ++snap) {
+ // create a snapshot, clone
+ vector<uint64_t> ns(1);
+ ns.insert(ns.end(), my_snaps.begin(), my_snaps.end());
+ my_snaps.swap(ns);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ cout << "my_snaps " << my_snaps << std::endl;
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ for (int i=0; i<num; ++i) {
+ bufferlist bl;
+ bl.append(string("ciao! snap") + stringify(snap));
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate(string("foo") + stringify(i), &op));
+ }
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on _some_ heads to make sure we handle cases
+ // where snaps are present and where they are not.
+ cout << "promoting some heads" << std::endl;
+ for (int i=0; i<num; ++i) {
+ if (i % 5 == 0 || i > num - 3) {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read(string("foo") + stringify(i), bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ }
+
+ for (unsigned snap = 0; snap < my_snaps.size(); ++snap) {
+ cout << "promoting from clones for snap " << my_snaps[snap] << std::endl;
+ ioctx.snap_set_read(my_snaps[snap]);
+
+ // read some snaps, semi-randomly
+ for (int i=0; i<50; ++i) {
+ bufferlist bl;
+ string o = string("foo") + stringify((snap * i * 137) % 80);
+ //cout << o << std::endl;
+ ASSERT_EQ(1, ioctx.read(o, bl, 1, 0));
+ }
+ }
+
+ // ok, stop and scrub this pool (to make sure scrub can handle
+ // missing clones in the cache tier).
+ {
+ IoCtx cache_ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ for (int i=0; i<10; ++i) {
+ do {
+ ostringstream ss;
+ ss << "{\"prefix\": \"pg scrub\", \"pgid\": \""
+ << cache_ioctx.get_id() << "." << i
+ << "\"}";
+ int r = cluster.mon_command(ss.str(), inbl, NULL, NULL);
+ if (r == -ENOENT || // in case mgr osdmap is stale
+ r == -EAGAIN) {
+ sleep(5);
+ continue;
+ }
+ } while (false);
+ }
+
+ // give it a few seconds to go. this is sloppy but is usually enough time
+ cout << "waiting for scrubs..." << std::endl;
+ sleep(30);
+ cout << "done waiting" << std::endl;
+ }
+
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+
+ //cleanup
+ for (unsigned snap = 0; snap < my_snaps.size(); ++snap) {
+ ioctx.selfmanaged_snap_remove(my_snaps[snap]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, PromoteSnapTrimRace) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // delete the snap
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_remove(my_snaps[0]));
+
+ ioctx.snap_set_read(my_snaps[0]);
+
+ // read foo snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTwoPoolsPP, Whiteout) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create some whiteouts, verify they behave
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(-ENOENT, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(-ENOENT, ioctx.operate("bar", &op));
+ }
+
+ // verify the whiteouts are there in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // delete a whiteout and verify it goes away
+ ASSERT_EQ(-ENOENT, ioctx.remove("foo"));
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // recreate an object and verify we can read it
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, WhiteoutDeleteCreate) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create an object
+ {
+ bufferlist bl;
+ bl.append("foo");
+ ASSERT_EQ(0, ioctx.write_full("foo", bl));
+ }
+
+ // do delete + create operation
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ bufferlist bl;
+ bl.append("bar");
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify it still "exists" (w/ new content)
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('b', bl[0]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, Evict) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // read, trigger a whiteout, and a dirty object
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(0, ioctx.write("bar", bl, bl.length(), 0));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE,
+ NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE,
+ NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, EvictSnap) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on the head
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // evict bam
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bam", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bam", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-ENOENT, completion->get_return_value());
+ completion->release();
+ }
+
+ // read foo snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // evict foo snap
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // snap is gone...
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-ENOENT, completion->get_return_value());
+ completion->release();
+ }
+ // head is still there...
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // promote head + snap of bar
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // evict bar head (fail)
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict bar snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // ...and then head
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+// this test case reproduces http://tracker.ceph.com/issues/8629
+TEST_F(LibRadosTwoPoolsPP, EvictSnap2) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on the head
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify the snapdir is not present in the cache pool
+ {
+ ObjectReadOperation op;
+ librados::snap_set_t snapset;
+ op.list_snaps(&snapset, NULL);
+ ioctx.snap_set_read(librados::SNAP_DIR);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-ENOENT, completion->get_return_value());
+ completion->release();
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, TryFlush) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // verify dirty
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // verify in base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it != ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // evict it
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, Flush) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ uint64_t user_version = 0;
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // verify dirty
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ user_version = cache_ioctx.get_last_version();
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // verify in base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it != ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // evict it
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // read it again and verify the version is consistent
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, cache_ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ(user_version, cache_ioctx.get_last_version());
+ }
+
+ // erase it
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush whiteout
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+ // or base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, FlushSnap) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("a");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("b");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // and another
+ my_snaps.resize(2);
+ my_snaps[1] = my_snaps[0];
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("c");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // flush on head (should fail)
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+ // flush on recent snap (should fail)
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+ // flush on oldest snap
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // flush on next oldest snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // flush on head
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify i can read the snaps from the cache pool
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('b', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('a', bl[0]);
+ }
+
+ // remove overlay
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // verify i can read the snaps from the base pool
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('b', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('a', bl[0]);
+ }
+
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTierPP, FlushWriteRaces) {
+ Rados cluster;
+ std::string pool_name = get_temp_pool_name();
+ std::string cache_pool_name = pool_name + "-cache";
+ ASSERT_EQ("", create_one_pool_pp(pool_name, cluster));
+ ASSERT_EQ(0, cluster.pool_create(cache_pool_name.c_str()));
+ IoCtx cache_ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ cache_ioctx.application_enable("rados", true);
+ IoCtx ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(pool_name.c_str(), ioctx));
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ bufferlist bl;
+ bl.append("hi there");
+ {
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + write
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectWriteOperation op2;
+ op2.write_full(bl);
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion2, &op2, 0));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ int tries = 1000;
+ do {
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + write
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectWriteOperation op2;
+ op2.write_full(bl);
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("foo", completion2, &op2, 0));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ int r = completion->get_return_value();
+ ASSERT_TRUE(r == -EBUSY || r == 0);
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ if (r == -EBUSY)
+ break;
+ cout << "didn't get EBUSY, trying again" << std::endl;
+ }
+ ASSERT_TRUE(--tries);
+ } while (true);
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+
+ ASSERT_EQ(0, cluster.pool_delete(cache_pool_name.c_str()));
+ ASSERT_EQ(0, destroy_one_pool_pp(pool_name, cluster));
+}
+
+TEST_F(LibRadosTwoPoolsPP, FlushTryFlushRaces) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + try-flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_try_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ // create/dirty object
+ int tries = 1000;
+ do {
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + flush
+ // (flush will not piggyback on try-flush)
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ int r = completion->get_return_value();
+ ASSERT_TRUE(r == -EBUSY || r == 0);
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ if (r == -EBUSY)
+ break;
+ cout << "didn't get EBUSY, trying again" << std::endl;
+ }
+ ASSERT_TRUE(--tries);
+ } while (true);
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + try-flush
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_try_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+}
+
+
+IoCtx *read_ioctx = 0;
+Mutex test_lock("FlushReadRaces::lock");
+Cond cond;
+int max_reads = 100;
+int num_reads = 0; // in progress
+
+void flush_read_race_cb(completion_t cb, void *arg);
+
+void start_flush_read()
+{
+ //cout << " starting read" << std::endl;
+ ObjectReadOperation op;
+ op.stat(NULL, NULL, NULL);
+ librados::AioCompletion *completion = completions.getCompletion();
+ completion->set_complete_callback(0, flush_read_race_cb);
+ read_ioctx->aio_operate("foo", completion, &op, NULL);
+}
+
+void flush_read_race_cb(completion_t cb, void *arg)
+{
+ //cout << " finished read" << std::endl;
+ test_lock.Lock();
+ if (num_reads > max_reads) {
+ num_reads--;
+ cond.Signal();
+ } else {
+ start_flush_read();
+ }
+ test_lock.Unlock();
+}
+
+TEST_F(LibRadosTwoPoolsPP, TryFlushReadRace) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ bufferptr bp(4000000); // make it big!
+ bp.zero();
+ bl.append(bp);
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // start a continuous stream of reads
+ read_ioctx = &ioctx;
+ test_lock.Lock();
+ for (int i = 0; i < max_reads; ++i) {
+ start_flush_read();
+ num_reads++;
+ }
+ test_lock.Unlock();
+
+ // try-flush
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+
+ // stop reads
+ test_lock.Lock();
+ max_reads = 0;
+ while (num_reads > 0)
+ cond.Wait(test_lock);
+ test_lock.Unlock();
+}
+
+TEST_F(LibRadosTierPP, HitSetNone) {
+ {
+ list< pair<time_t,time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, ioctx.hit_set_list(123, c, &ls));
+ c->wait_for_complete();
+ ASSERT_EQ(0, c->get_return_value());
+ ASSERT_TRUE(ls.empty());
+ c->release();
+ }
+ {
+ bufferlist bl;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, ioctx.hit_set_get(123, c, 12345, &bl));
+ c->wait_for_complete();
+ ASSERT_EQ(-ENOENT, c->get_return_value());
+ c->release();
+ }
+}
+
+string set_pool_str(string pool, string var, string val)
+{
+ return string("{\"prefix\": \"osd pool set\",\"pool\":\"") + pool
+ + string("\",\"var\": \"") + var + string("\",\"val\": \"")
+ + val + string("\"}");
+}
+
+string set_pool_str(string pool, string var, int val)
+{
+ return string("{\"prefix\": \"osd pool set\",\"pool\":\"") + pool
+ + string("\",\"var\": \"") + var + string("\",\"val\": \"")
+ + stringify(val) + string("\"}");
+}
+
+TEST_F(LibRadosTwoPoolsPP, HitSetRead) {
+ // make it a tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_type",
+ "explicit_object"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ cache_ioctx.set_namespace("");
+
+ // keep reading until we see our object appear in the HitSet
+ utime_t start = ceph_clock_now();
+ utime_t hard_stop = start + utime_t(600, 0);
+
+ while (true) {
+ utime_t now = ceph_clock_now();
+ ASSERT_TRUE(now < hard_stop);
+
+ string name = "foo";
+ uint32_t hash;
+ ASSERT_EQ(0, cache_ioctx.get_object_hash_position2(name, &hash));
+ hobject_t oid(sobject_t(name, CEPH_NOSNAP), "", hash,
+ cluster.pool_lookup(cache_pool_name.c_str()), "");
+
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, cache_ioctx.read("foo", bl, 1, 0));
+
+ bufferlist hbl;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.hit_set_get(hash, c, now.sec(), &hbl));
+ c->wait_for_complete();
+ c->release();
+
+ if (hbl.length()) {
+ bufferlist::iterator p = hbl.begin();
+ HitSet hs;
+ ::decode(hs, p);
+ if (hs.contains(oid)) {
+ cout << "ok, hit_set contains " << oid << std::endl;
+ break;
+ }
+ cout << "hmm, not in HitSet yet" << std::endl;
+ } else {
+ cout << "hmm, no HitSet yet" << std::endl;
+ }
+
+ sleep(1);
+ }
+}
+
+static int _get_pg_num(Rados& cluster, string pool_name)
+{
+ bufferlist inbl;
+ string cmd = string("{\"prefix\": \"osd pool get\",\"pool\":\"")
+ + pool_name
+ + string("\",\"var\": \"pg_num\",\"format\": \"json\"}");
+ bufferlist outbl;
+ int r = cluster.mon_command(cmd, inbl, &outbl, NULL);
+ assert(r >= 0);
+ string outstr(outbl.c_str(), outbl.length());
+ json_spirit::Value v;
+ if (!json_spirit::read(outstr, v)) {
+ cerr <<" unable to parse json " << outstr << std::endl;
+ return -1;
+ }
+
+ json_spirit::Object& o = v.get_obj();
+ for (json_spirit::Object::size_type i=0; i<o.size(); i++) {
+ json_spirit::Pair& p = o[i];
+ if (p.name_ == "pg_num") {
+ cout << "pg_num = " << p.value_.get_int() << std::endl;
+ return p.value_.get_int();
+ }
+ }
+ cerr << "didn't find pg_num in " << outstr << std::endl;
+ return -1;
+}
+
+
+TEST_F(LibRadosTwoPoolsPP, HitSetWrite) {
+ int num_pg = _get_pg_num(cluster, pool_name);
+ assert(num_pg > 0);
+
+ // make it a tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_count", 8),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_type",
+ "explicit_hash"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ cache_ioctx.set_namespace("");
+
+ int num = 200;
+
+ // do a bunch of writes
+ for (int i=0; i<num; ++i) {
+ bufferlist bl;
+ bl.append("a");
+ ASSERT_EQ(0, cache_ioctx.write(stringify(i), bl, 1, 0));
+ }
+
+ // get HitSets
+ std::map<int,HitSet> hitsets;
+ for (int i=0; i<num_pg; ++i) {
+ list< pair<time_t,time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.hit_set_list(i, c, &ls));
+ c->wait_for_complete();
+ c->release();
+ std::cout << "pg " << i << " ls " << ls << std::endl;
+ ASSERT_FALSE(ls.empty());
+
+ // get the latest
+ c = librados::Rados::aio_create_completion();
+ bufferlist bl;
+ ASSERT_EQ(0, cache_ioctx.hit_set_get(i, c, ls.back().first, &bl));
+ c->wait_for_complete();
+ c->release();
+
+ try {
+ bufferlist::iterator p = bl.begin();
+ ::decode(hitsets[i], p);
+ }
+ catch (buffer::error& e) {
+ std::cout << "failed to decode hit set; bl len is " << bl.length() << "\n";
+ bl.hexdump(std::cout);
+ std::cout << std::endl;
+ throw e;
+ }
+
+ // cope with racing splits by refreshing pg_num
+ if (i == num_pg - 1)
+ num_pg = _get_pg_num(cluster, cache_pool_name);
+ }
+
+ for (int i=0; i<num; ++i) {
+ string n = stringify(i);
+ uint32_t hash;
+ ASSERT_EQ(0, cache_ioctx.get_object_hash_position2(n, &hash));
+ hobject_t oid(sobject_t(n, CEPH_NOSNAP), "", hash,
+ cluster.pool_lookup(cache_pool_name.c_str()), "");
+ std::cout << "checking for " << oid << std::endl;
+ bool found = false;
+ for (int p=0; p<num_pg; ++p) {
+ if (hitsets[p].contains(oid)) {
+ found = true;
+ break;
+ }
+ }
+ ASSERT_TRUE(found);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, HitSetTrim) {
+ unsigned count = 3;
+ unsigned period = 3;
+
+ // make it a tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_count", count),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_period", period),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_fpp", ".01"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ cache_ioctx.set_namespace("");
+
+ // do a bunch of writes and make sure the hitsets rotate
+ utime_t start = ceph_clock_now();
+ utime_t hard_stop = start + utime_t(count * period * 50, 0);
+
+ time_t first = 0;
+ while (true) {
+ string name = "foo";
+ uint32_t hash;
+ ASSERT_EQ(0, cache_ioctx.get_object_hash_position2(name, &hash));
+ hobject_t oid(sobject_t(name, CEPH_NOSNAP), "", hash, -1, "");
+
+ bufferlist bl;
+ bl.append("f");
+ ASSERT_EQ(0, cache_ioctx.write("foo", bl, 1, 0));
+
+ list<pair<time_t, time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.hit_set_list(hash, c, &ls));
+ c->wait_for_complete();
+ c->release();
+
+ cout << " got ls " << ls << std::endl;
+ if (!ls.empty()) {
+ if (!first) {
+ first = ls.front().first;
+ cout << "first is " << first << std::endl;
+ } else {
+ if (ls.front().first != first) {
+ cout << "first now " << ls.front().first << ", trimmed" << std::endl;
+ break;
+ }
+ }
+ }
+
+ utime_t now = ceph_clock_now();
+ ASSERT_TRUE(now < hard_stop);
+
+ sleep(1);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsPP, PromoteOn2ndRead) {
+ // create object
+ for (int i=0; i<20; ++i) {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo" + stringify(i), &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "min_read_recency_for_promote", 1),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_grade_decay_rate", 20),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_search_last_n", 1),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ int fake = 0; // set this to non-zero to test spurious promotion,
+ // e.g. from thrashing
+ int attempt = 0;
+ string obj;
+ while (true) {
+ // 1st read, don't trigger a promote
+ obj = "foo" + stringify(attempt);
+ cout << obj << std::endl;
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+ if (--fake >= 0) {
+ sleep(1);
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+ sleep(1);
+ }
+ }
+
+ // verify the object is NOT present in the cache tier
+ {
+ bool found = false;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ cout << " see " << it->get_oid() << std::endl;
+ if (it->get_oid() == string(obj.c_str())) {
+ found = true;
+ break;
+ }
+ ++it;
+ }
+ if (!found)
+ break;
+ }
+
+ ++attempt;
+ ASSERT_LE(attempt, 20);
+ cout << "hrm, object is present in cache on attempt " << attempt
+ << ", retrying" << std::endl;
+ }
+
+ // Read until the object is present in the cache tier
+ cout << "verifying " << obj << " is eventually promoted" << std::endl;
+ while (true) {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+
+ bool there = false;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ if (it->get_oid() == string(obj.c_str())) {
+ there = true;
+ break;
+ }
+ ++it;
+ }
+ if (there)
+ break;
+
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+TEST_F(LibRadosTwoPoolsPP, ProxyRead) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"readproxy\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read and verify the object
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // Verify 10 times the object is NOT present in the cache tier
+ uint32_t i = 0;
+ while (i++ < 10) {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+TEST_F(LibRadosTwoPoolsPP, CachePin) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ }
+
+ // verify the objects are present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ for (uint32_t i = 0; i < 4; i++) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("bar") ||
+ it->get_oid() == string("baz") ||
+ it->get_oid() == string("bam"));
+ ++it;
+ }
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // pin objects
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("baz", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // enable agent
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "min_read_recency_for_promote", 1),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "target_max_objects", 1),
+ inbl, NULL, NULL));
+
+ sleep(10);
+
+ // Verify the pinned object 'foo' is not flushed/evicted
+ uint32_t count = 0;
+ while (true) {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+
+ count = 0;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("bar") ||
+ it->get_oid() == string("baz") ||
+ it->get_oid() == string("bam"));
+ ++count;
+ ++it;
+ }
+ if (count == 2) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("baz"));
+ break;
+ }
+
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+TEST_F(LibRadosTwoPoolsPP, SetRedirectRead) {
+ // skip test if not yet luminous
+ {
+ bufferlist inbl, outbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd dump\"}",
+ inbl, &outbl, NULL));
+ string s(outbl.c_str(), outbl.length());
+ if (s.find("luminous") == std::string::npos) {
+ cout << "cluster is not yet luminous, skipping test" << std::endl;
+ return;
+ }
+ }
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, cache_ioctx.operate("bar", &op));
+ }
+
+ // configure tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ {
+ ObjectWriteOperation op;
+ op.set_redirect("bar", cache_ioctx, 0);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // read and verify the object
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('t', bl[0]);
+ }
+
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+class LibRadosTwoPoolsECPP : public RadosTestECPP
+{
+public:
+ LibRadosTwoPoolsECPP() {};
+ ~LibRadosTwoPoolsECPP() override {};
+protected:
+ static void SetUpTestCase() {
+ pool_name = get_temp_pool_name();
+ ASSERT_EQ("", create_one_ec_pool_pp(pool_name, s_cluster));
+ }
+ static void TearDownTestCase() {
+ ASSERT_EQ(0, destroy_one_ec_pool_pp(pool_name, s_cluster));
+ }
+ static std::string cache_pool_name;
+
+ void SetUp() override {
+ cache_pool_name = get_temp_pool_name();
+ ASSERT_EQ(0, s_cluster.pool_create(cache_pool_name.c_str()));
+ RadosTestECPP::SetUp();
+
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ cache_ioctx.application_enable("rados", true);
+ cache_ioctx.set_namespace(nspace);
+ }
+ void TearDown() override {
+ // flush + evict cache
+ flush_evict_all(cluster, cache_ioctx);
+
+ bufferlist inbl;
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+
+ RadosTestECPP::TearDown();
+
+ cleanup_default_namespace(cache_ioctx);
+ cleanup_namespace(cache_ioctx, nspace);
+
+ cache_ioctx.close();
+ ASSERT_EQ(0, s_cluster.pool_delete(cache_pool_name.c_str()));
+ }
+
+ librados::IoCtx cache_ioctx;
+};
+
+std::string LibRadosTwoPoolsECPP::cache_pool_name;
+
+TEST_F(LibRadosTierECPP, Dirty) {
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op)); // still get 0 if it dne
+ }
+ {
+ ObjectWriteOperation op;
+ op.create(true);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ }
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.undirty();
+ ASSERT_EQ(0, ioctx.operate("foo", &op)); // still 0 if already clean
+ }
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+ //{
+ // ObjectWriteOperation op;
+ // op.truncate(0); // still a write even tho it is a no-op
+ // ASSERT_EQ(0, ioctx.operate("foo", &op));
+ //}
+ //{
+ // bool dirty = false;
+ // int r = -1;
+ // ObjectReadOperation op;
+ // op.is_dirty(&dirty, &r);
+ // ASSERT_EQ(0, ioctx.operate("foo", &op, NULL));
+ // ASSERT_TRUE(dirty);
+ // ASSERT_EQ(0, r);
+ //}
+}
+
+TEST_F(LibRadosTwoPoolsECPP, Overlay) {
+ // create objects
+ {
+ bufferlist bl;
+ bl.append("base");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("cache");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // by default, the overlay sends us to cache pool
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, cache_ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // unless we say otherwise
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(0, 1, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ ASSERT_EQ('b', bl[0]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, Promote) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // read, trigger a whiteout
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, PromoteSnap) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on the head
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ ioctx.snap_set_read(my_snaps[0]);
+
+ // stop and scrub this pg (to make sure scrub can handle missing
+ // clones in the cache tier)
+ // This test requires cache tier and base tier to have the same pg_num/pgp_num
+ {
+ for (int tries = 0; tries < 5; ++tries) {
+ IoCtx cache_ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ uint32_t hash;
+ ASSERT_EQ(0, ioctx.get_object_pg_hash_position2("foo", &hash));
+ ostringstream ss;
+ ss << "{\"prefix\": \"pg scrub\", \"pgid\": \""
+ << cache_ioctx.get_id() << "."
+ << hash
+ << "\"}";
+ int r = cluster.mon_command(ss.str(), inbl, NULL, NULL);
+ if (r == -EAGAIN ||
+ r == -ENOENT) { // in case mgr osdmap is a bit stale
+ sleep(5);
+ continue;
+ }
+ ASSERT_EQ(0, r);
+ break;
+ }
+ // give it a few seconds to go. this is sloppy but is usually enough time
+ cout << "waiting for scrub..." << std::endl;
+ sleep(15);
+ cout << "done waiting" << std::endl;
+ }
+
+ // read foo snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // read bar snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // read baz snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+
+ // read foo
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // read bar
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // read baz
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("baz", bl, 1, 0));
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTwoPoolsECPP, PromoteSnapTrimRace) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // delete the snap
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_remove(my_snaps[0]));
+
+ ioctx.snap_set_read(my_snaps[0]);
+
+ // read foo snap
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTwoPoolsECPP, Whiteout) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create some whiteouts, verify they behave
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(-ENOENT, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.assert_exists();
+ op.remove();
+ ASSERT_EQ(-ENOENT, ioctx.operate("bar", &op));
+ }
+
+ // verify the whiteouts are there in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // delete a whiteout and verify it goes away
+ ASSERT_EQ(-ENOENT, ioctx.remove("foo"));
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // recreate an object and verify we can read it
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, Evict) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ }
+
+ // read, trigger a whiteout, and a dirty object
+ {
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(-ENOENT, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(0, ioctx.write("bar", bl, bl.length(), 0));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it->get_oid() == string("foo") || it->get_oid() == string("bar"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE,
+ NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE,
+ NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, EvictSnap) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("ciao!");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger a promote on the head
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+
+ // evict bam
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bam", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "bam", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-ENOENT, completion->get_return_value());
+ completion->release();
+ }
+
+ // read foo snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // evict foo snap
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // snap is gone...
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-ENOENT, completion->get_return_value());
+ completion->release();
+ }
+ // head is still there...
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // promote head + snap of bar
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // evict bar head (fail)
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict bar snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // ...and then head
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ObjectReadOperation op;
+ op.read(1, 0, &bl, NULL);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "bar", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTwoPoolsECPP, TryFlush) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // verify dirty
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // verify in base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it != ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // evict it
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, FailedFlush) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // set omap
+ {
+ ObjectWriteOperation op;
+ std::map<std::string, bufferlist> omap;
+ omap["somekey"] = bufferlist();
+ op.omap_set(omap);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_NE(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // get omap
+ {
+ ObjectReadOperation op;
+ bufferlist bl;
+ int prval = 0;
+ std::set<std::string> keys;
+ keys.insert("somekey");
+ std::map<std::string, bufferlist> map;
+
+ op.omap_get_vals_by_keys(keys, &map, &prval);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op, &bl));
+ sleep(5);
+ bool completed = completion->is_complete();
+ if( !completed ) {
+ cache_ioctx.aio_cancel(completion);
+ std::cerr << "Most probably test case will hang here, please reset manually" << std::endl;
+ ASSERT_TRUE(completed); //in fact we are locked forever at test case shutdown unless fix for http://tracker.ceph.com/issues/14511 is applied. Seems there is no workaround for that
+ }
+ completion->release();
+ }
+ // verify still not in base tier
+ {
+ ASSERT_TRUE(ioctx.nobjects_begin() == ioctx.nobjects_end());
+ }
+ // erase it
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ // flush whiteout
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+ // or base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, Flush) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ uint64_t user_version = 0;
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // verify dirty
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_TRUE(dirty);
+ ASSERT_EQ(0, r);
+ user_version = cache_ioctx.get_last_version();
+ }
+
+ // pin
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush the pinned object with -EPERM
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EPERM, completion->get_return_value());
+ completion->release();
+ }
+
+ // unpin
+ {
+ ObjectWriteOperation op;
+ op.cache_unpin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify clean
+ {
+ bool dirty = false;
+ int r = -1;
+ ObjectReadOperation op;
+ op.is_dirty(&dirty, &r);
+ ASSERT_EQ(0, cache_ioctx.operate("foo", &op, NULL));
+ ASSERT_FALSE(dirty);
+ ASSERT_EQ(0, r);
+ }
+
+ // verify in base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it != ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // evict it
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // read it again and verify the version is consistent
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, cache_ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ(user_version, cache_ioctx.get_last_version());
+ }
+
+ // erase it
+ {
+ ObjectWriteOperation op;
+ op.remove();
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush whiteout
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op, librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify no longer in cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+ // or base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, FlushSnap) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("a");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // create a snapshot, clone
+ vector<uint64_t> my_snaps(1);
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("b");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // and another
+ my_snaps.resize(2);
+ my_snaps[1] = my_snaps[0];
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_create(&my_snaps[0]));
+ ASSERT_EQ(0, ioctx.selfmanaged_snap_set_write_ctx(my_snaps[0],
+ my_snaps));
+ {
+ bufferlist bl;
+ bl.append("c");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // verify the object is present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // verify the object is NOT present in the base tier
+ {
+ NObjectIterator it = ioctx.nobjects_begin();
+ ASSERT_TRUE(it == ioctx.nobjects_end());
+ }
+
+ // flush on head (should fail)
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+ // flush on recent snap (should fail)
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(-EBUSY, completion->get_return_value());
+ completion->release();
+ }
+ // flush on oldest snap
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // flush on next oldest snap
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // flush on head
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // verify i can read the snaps from the cache pool
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('b', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('a', bl[0]);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // verify i can read the snaps from the base pool
+ ioctx.snap_set_read(librados::SNAP_HEAD);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('c', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[0]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('b', bl[0]);
+ }
+ ioctx.snap_set_read(my_snaps[1]);
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('a', bl[0]);
+ }
+
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ cluster.wait_for_latest_osdmap();
+
+ // cleanup
+ ioctx.selfmanaged_snap_remove(my_snaps[0]);
+}
+
+TEST_F(LibRadosTierECPP, FlushWriteRaces) {
+ Rados cluster;
+ std::string pool_name = get_temp_pool_name();
+ std::string cache_pool_name = pool_name + "-cache";
+ ASSERT_EQ("", create_one_pool_pp(pool_name, cluster));
+ ASSERT_EQ(0, cluster.pool_create(cache_pool_name.c_str()));
+ IoCtx cache_ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ cache_ioctx.application_enable("rados", true);
+ IoCtx ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(pool_name.c_str(), ioctx));
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ bufferlist bl;
+ bl.append("hi there");
+ {
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + write
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectWriteOperation op2;
+ op2.write_full(bl);
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate(
+ "foo", completion2, &op2, 0));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ int tries = 1000;
+ do {
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + write
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectWriteOperation op2;
+ op2.write_full(bl);
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("foo", completion2, &op2, 0));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ int r = completion->get_return_value();
+ ASSERT_TRUE(r == -EBUSY || r == 0);
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ if (r == -EBUSY)
+ break;
+ cout << "didn't get EBUSY, trying again" << std::endl;
+ }
+ ASSERT_TRUE(--tries);
+ } while (true);
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+
+ ASSERT_EQ(0, cluster.pool_delete(cache_pool_name.c_str()));
+ ASSERT_EQ(0, destroy_one_pool_pp(pool_name, cluster));
+}
+
+TEST_F(LibRadosTwoPoolsECPP, FlushTryFlushRaces) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush + try-flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_try_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+
+ // create/dirty object
+ int tries = 1000;
+ do {
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + flush
+ // (flush will not piggyback on try-flush)
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ int r = completion->get_return_value();
+ ASSERT_TRUE(r == -EBUSY || r == 0);
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ if (r == -EBUSY)
+ break;
+ cout << "didn't get EBUSY, trying again" << std::endl;
+ }
+ ASSERT_TRUE(--tries);
+ } while (true);
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // try-flush + try-flush
+ {
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ ObjectReadOperation op2;
+ op2.cache_try_flush();
+ librados::AioCompletion *completion2 = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion2, &op2,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ completion2->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ ASSERT_EQ(0, completion2->get_return_value());
+ completion->release();
+ completion2->release();
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, TryFlushReadRace) {
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ bufferptr bp(4000000); // make it big!
+ bp.zero();
+ bl.append(bp);
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // start a continuous stream of reads
+ read_ioctx = &ioctx;
+ test_lock.Lock();
+ for (int i = 0; i < max_reads; ++i) {
+ start_flush_read();
+ num_reads++;
+ }
+ test_lock.Unlock();
+
+ // try-flush
+ ObjectReadOperation op;
+ op.cache_try_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY |
+ librados::OPERATION_SKIPRWLOCKS, NULL));
+
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+
+ // stop reads
+ test_lock.Lock();
+ max_reads = 0;
+ while (num_reads > 0)
+ cond.Wait(test_lock);
+ test_lock.Unlock();
+}
+
+TEST_F(LibRadosTierECPP, CallForcesPromote) {
+ Rados cluster;
+ std::string pool_name = get_temp_pool_name();
+ std::string cache_pool_name = pool_name + "-cache";
+ ASSERT_EQ("", create_one_ec_pool_pp(pool_name, cluster));
+ ASSERT_EQ(0, cluster.pool_create(cache_pool_name.c_str()));
+ IoCtx cache_ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(cache_pool_name.c_str(), cache_ioctx));
+ cache_ioctx.application_enable("rados", true);
+ IoCtx ioctx;
+ ASSERT_EQ(0, cluster.ioctx_create(pool_name.c_str(), ioctx));
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // set things up such that the op would normally be proxied
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_type",
+ "explicit_object"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "min_read_recency_for_promote",
+ "4"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // create/dirty object
+ bufferlist bl;
+ bl.append("hi there");
+ {
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // flush
+ {
+ ObjectReadOperation op;
+ op.cache_flush();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate(
+ "foo", completion, &op,
+ librados::OPERATION_IGNORE_OVERLAY, NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // evict
+ {
+ ObjectReadOperation op;
+ op.cache_evict();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op,
+ librados::OPERATION_IGNORE_CACHE,
+ NULL));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // call
+ {
+ ObjectReadOperation op;
+ bufferlist bl;
+ op.exec("rbd", "get_id", bl);
+ bufferlist out;
+ // should get EIO (not an rbd object), not -EOPNOTSUPP (we didn't promote)
+ ASSERT_EQ(-5, ioctx.operate("foo", &op, &out));
+ }
+
+ // make sure foo is back in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ ASSERT_TRUE(it->get_oid() == string("foo"));
+ ++it;
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+
+ ASSERT_EQ(0, cluster.pool_delete(cache_pool_name.c_str()));
+ ASSERT_EQ(0, destroy_one_pool_pp(pool_name, cluster));
+}
+
+TEST_F(LibRadosTierECPP, HitSetNone) {
+ {
+ list< pair<time_t,time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, ioctx.hit_set_list(123, c, &ls));
+ c->wait_for_complete();
+ ASSERT_EQ(0, c->get_return_value());
+ ASSERT_TRUE(ls.empty());
+ c->release();
+ }
+ {
+ bufferlist bl;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, ioctx.hit_set_get(123, c, 12345, &bl));
+ c->wait_for_complete();
+ ASSERT_EQ(-ENOENT, c->get_return_value());
+ c->release();
+ }
+}
+
+TEST_F(LibRadosTwoPoolsECPP, HitSetRead) {
+ // make it a tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_type",
+ "explicit_object"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ cache_ioctx.set_namespace("");
+
+ // keep reading until we see our object appear in the HitSet
+ utime_t start = ceph_clock_now();
+ utime_t hard_stop = start + utime_t(600, 0);
+
+ while (true) {
+ utime_t now = ceph_clock_now();
+ ASSERT_TRUE(now < hard_stop);
+
+ string name = "foo";
+ uint32_t hash;
+ ASSERT_EQ(0, cache_ioctx.get_object_hash_position2(name, &hash));
+ hobject_t oid(sobject_t(name, CEPH_NOSNAP), "", hash,
+ cluster.pool_lookup(cache_pool_name.c_str()), "");
+
+ bufferlist bl;
+ ASSERT_EQ(-ENOENT, cache_ioctx.read("foo", bl, 1, 0));
+
+ bufferlist hbl;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.hit_set_get(hash, c, now.sec(), &hbl));
+ c->wait_for_complete();
+ c->release();
+
+ if (hbl.length()) {
+ bufferlist::iterator p = hbl.begin();
+ HitSet hs;
+ ::decode(hs, p);
+ if (hs.contains(oid)) {
+ cout << "ok, hit_set contains " << oid << std::endl;
+ break;
+ }
+ cout << "hmm, not in HitSet yet" << std::endl;
+ } else {
+ cout << "hmm, no HitSet yet" << std::endl;
+ }
+
+ sleep(1);
+ }
+}
+
+// disable this test until hitset-get reliably works on EC pools
+#if 0
+TEST_F(LibRadosTierECPP, HitSetWrite) {
+ int num_pg = _get_pg_num(cluster, pool_name);
+ assert(num_pg > 0);
+
+ // enable hitset tracking for this pool
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(pool_name, "hit_set_count", 8),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(pool_name, "hit_set_type",
+ "explicit_hash"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ ioctx.set_namespace("");
+
+ // do a bunch of writes
+ for (int i=0; i<1000; ++i) {
+ bufferlist bl;
+ bl.append("a");
+ ASSERT_EQ(0, ioctx.write(stringify(i), bl, 1, 0));
+ }
+
+ // get HitSets
+ std::map<int,HitSet> hitsets;
+ for (int i=0; i<num_pg; ++i) {
+ list< pair<time_t,time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, ioctx.hit_set_list(i, c, &ls));
+ c->wait_for_complete();
+ c->release();
+ std::cout << "pg " << i << " ls " << ls << std::endl;
+ ASSERT_FALSE(ls.empty());
+
+ // get the latest
+ c = librados::Rados::aio_create_completion();
+ bufferlist bl;
+ ASSERT_EQ(0, ioctx.hit_set_get(i, c, ls.back().first, &bl));
+ c->wait_for_complete();
+ c->release();
+
+ //std::cout << "bl len is " << bl.length() << "\n";
+ //bl.hexdump(std::cout);
+ //std::cout << std::endl;
+
+ bufferlist::iterator p = bl.begin();
+ ::decode(hitsets[i], p);
+
+ // cope with racing splits by refreshing pg_num
+ if (i == num_pg - 1)
+ num_pg = _get_pg_num(cluster, pool_name);
+ }
+
+ for (int i=0; i<1000; ++i) {
+ string n = stringify(i);
+ uint32_t hash = ioctx.get_object_hash_position(n);
+ hobject_t oid(sobject_t(n, CEPH_NOSNAP), "", hash,
+ cluster.pool_lookup(pool_name.c_str()), "");
+ std::cout << "checking for " << oid << std::endl;
+ bool found = false;
+ for (int p=0; p<num_pg; ++p) {
+ if (hitsets[p].contains(oid)) {
+ found = true;
+ break;
+ }
+ }
+ ASSERT_TRUE(found);
+ }
+}
+#endif
+
+TEST_F(LibRadosTwoPoolsECPP, HitSetTrim) {
+ unsigned count = 3;
+ unsigned period = 3;
+
+ // make it a tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_count", count),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_period", period),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(set_pool_str(cache_pool_name, "hit_set_fpp", ".01"),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ cache_ioctx.set_namespace("");
+
+ // do a bunch of writes and make sure the hitsets rotate
+ utime_t start = ceph_clock_now();
+ utime_t hard_stop = start + utime_t(count * period * 50, 0);
+
+ time_t first = 0;
+ int bsize = alignment;
+ char *buf = (char *)new char[bsize];
+ memset(buf, 'f', bsize);
+
+ while (true) {
+ string name = "foo";
+ uint32_t hash;
+ ASSERT_EQ(0, cache_ioctx.get_object_hash_position2(name, &hash));
+ hobject_t oid(sobject_t(name, CEPH_NOSNAP), "", hash, -1, "");
+
+ bufferlist bl;
+ bl.append(buf, bsize);
+ ASSERT_EQ(0, cache_ioctx.append("foo", bl, bsize));
+
+ list<pair<time_t, time_t> > ls;
+ AioCompletion *c = librados::Rados::aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.hit_set_list(hash, c, &ls));
+ c->wait_for_complete();
+ c->release();
+
+ cout << " got ls " << ls << std::endl;
+ if (!ls.empty()) {
+ if (!first) {
+ first = ls.front().first;
+ cout << "first is " << first << std::endl;
+ } else {
+ if (ls.front().first != first) {
+ cout << "first now " << ls.front().first << ", trimmed" << std::endl;
+ break;
+ }
+ }
+ }
+
+ utime_t now = ceph_clock_now();
+ ASSERT_TRUE(now < hard_stop);
+
+ sleep(1);
+ }
+ delete[] buf;
+}
+
+TEST_F(LibRadosTwoPoolsECPP, PromoteOn2ndRead) {
+ // create object
+ for (int i=0; i<20; ++i) {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo" + stringify(i), &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // enable hitset tracking for this pool
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "min_read_recency_for_promote", 1),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_grade_decay_rate", 20),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_search_last_n", 1),
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ int fake = 0; // set this to non-zero to test spurious promotion,
+ // e.g. from thrashing
+ int attempt = 0;
+ string obj;
+ while (true) {
+ // 1st read, don't trigger a promote
+ obj = "foo" + stringify(attempt);
+ cout << obj << std::endl;
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+ if (--fake >= 0) {
+ sleep(1);
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+ sleep(1);
+ }
+ }
+
+ // verify the object is NOT present in the cache tier
+ {
+ bool found = false;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ cout << " see " << it->get_oid() << std::endl;
+ if (it->get_oid() == string(obj.c_str())) {
+ found = true;
+ break;
+ }
+ ++it;
+ }
+ if (!found)
+ break;
+ }
+
+ ++attempt;
+ ASSERT_LE(attempt, 20);
+ cout << "hrm, object is present in cache on attempt " << attempt
+ << ", retrying" << std::endl;
+ }
+
+ // Read until the object is present in the cache tier
+ cout << "verifying " << obj << " is eventually promoted" << std::endl;
+ while (true) {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read(obj.c_str(), bl, 1, 0));
+
+ bool there = false;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ if (it->get_oid() == string(obj.c_str())) {
+ there = true;
+ break;
+ }
+ ++it;
+ }
+ if (there)
+ break;
+
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+TEST_F(LibRadosTwoPoolsECPP, ProxyRead) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"readproxy\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read and verify the object
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('h', bl[0]);
+ }
+
+ // Verify 10 times the object is NOT present in the cache tier
+ uint32_t i = 0;
+ while (i++ < 10) {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+
+TEST_F(LibRadosTwoPoolsECPP, CachePin) {
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bar", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("baz", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("bam", &op));
+ }
+
+ // configure cache
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" + pool_name +
+ "\", \"overlaypool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" + cache_pool_name +
+ "\", \"mode\": \"writeback\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ // read, trigger promote
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("bar", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+ ASSERT_EQ(1, ioctx.read("bam", bl, 1, 0));
+ }
+
+ // verify the objects are present in the cache tier
+ {
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ ASSERT_TRUE(it != cache_ioctx.nobjects_end());
+ for (uint32_t i = 0; i < 4; i++) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("bar") ||
+ it->get_oid() == string("baz") ||
+ it->get_oid() == string("bam"));
+ ++it;
+ }
+ ASSERT_TRUE(it == cache_ioctx.nobjects_end());
+ }
+
+ // pin objects
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ {
+ ObjectWriteOperation op;
+ op.cache_pin();
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, cache_ioctx.aio_operate("baz", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+
+ // enable agent
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_count", 2),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_period", 600),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "hit_set_type", "bloom"),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "min_read_recency_for_promote", 1),
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ set_pool_str(cache_pool_name, "target_max_objects", 1),
+ inbl, NULL, NULL));
+
+ sleep(10);
+
+ // Verify the pinned object 'foo' is not flushed/evicted
+ uint32_t count = 0;
+ while (true) {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("baz", bl, 1, 0));
+
+ count = 0;
+ NObjectIterator it = cache_ioctx.nobjects_begin();
+ while (it != cache_ioctx.nobjects_end()) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("bar") ||
+ it->get_oid() == string("baz") ||
+ it->get_oid() == string("bam"));
+ ++count;
+ ++it;
+ }
+ if (count == 2) {
+ ASSERT_TRUE(it->get_oid() == string("foo") ||
+ it->get_oid() == string("baz"));
+ break;
+ }
+
+ sleep(1);
+ }
+
+ // tear down tiers
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" + pool_name +
+ "\"}",
+ inbl, NULL, NULL));
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
+TEST_F(LibRadosTwoPoolsECPP, SetRedirectRead) {
+ // skip test if not yet luminous
+ {
+ bufferlist inbl, outbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd dump\"}",
+ inbl, &outbl, NULL));
+ string s(outbl.c_str(), outbl.length());
+ if (s.find("luminous") == std::string::npos) {
+ cout << "cluster is not yet luminous, skipping test" << std::endl;
+ return;
+ }
+ }
+
+ // create object
+ {
+ bufferlist bl;
+ bl.append("hi there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, ioctx.operate("foo", &op));
+ }
+ {
+ bufferlist bl;
+ bl.append("there");
+ ObjectWriteOperation op;
+ op.write_full(bl);
+ ASSERT_EQ(0, cache_ioctx.operate("bar", &op));
+ }
+
+ // configure tier
+ bufferlist inbl;
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier add\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name +
+ "\", \"force_nonempty\": \"--force-nonempty\" }",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle
+ cluster.wait_for_latest_osdmap();
+
+ {
+ ObjectWriteOperation op;
+ op.set_redirect("bar", cache_ioctx, 0);
+ librados::AioCompletion *completion = cluster.aio_create_completion();
+ ASSERT_EQ(0, ioctx.aio_operate("foo", completion, &op));
+ completion->wait_for_safe();
+ ASSERT_EQ(0, completion->get_return_value());
+ completion->release();
+ }
+ // read and verify the object
+ {
+ bufferlist bl;
+ ASSERT_EQ(1, ioctx.read("foo", bl, 1, 0));
+ ASSERT_EQ('t', bl[0]);
+ }
+
+ ASSERT_EQ(0, cluster.mon_command(
+ "{\"prefix\": \"osd tier remove\", \"pool\": \"" + pool_name +
+ "\", \"tierpool\": \"" + cache_pool_name + "\"}",
+ inbl, NULL, NULL));
+
+ // wait for maps to settle before next test
+ cluster.wait_for_latest_osdmap();
+}
Code Review / stor4nfv.git / blobdiff